Question

Not alone fg 13
Explain the experiment to find out the focal length of a convex lens. The focal
length of a convex lens is 100 cm. Find its power. P =
ta
loom
cm
A​

Answer 1

Answer:

Given:

The focal length of convex lens (f) = 100cm

To find:

Power(P) = ?

Formula:

$P = \frac{1}{f \: (m)}$

Solution:

Since the focal length is in cm therefore converting it into metre

Therefore,

$f \: = \: \frac{100}{100} = 1$

Therefore,

$P \: = \: \frac{1}{1} = 1$

Therefore,

P = 1 D

I hope this is helpful.